Hersbich stollwerck



(E0 Model.) H. STOLLWERCK.

HEATING AND FEEDING WATER T0 STEAM BOILERS.

Patented June 24 Ilnrrnn firnr'ns Parser @rricn,

HEINRICH STOLLIVERCK, OF COLOGNE-ONTHE-RHINE, PRUSSIA, GERMANY, ASSIGNORTO STOLIBVERGK, OF SAME PLACE.

HEATING AND FEEDING WATER TO STEAM-BOILERS.

SPECIFICATION forming part of Letters Patent No. 301,017, dated June 24,1884:.

Application filed February 13, 1884. (No model.)

To all whom it Hwy concern: Beit known that I, HEINRICH Sronmvnncu,

of the city of OOlOgnebn-the-Rhine, in the Kingdom of Prussia and GermanEmpire, have invented certain new and useful Improvements in Heating andFeeding Water to Steam-Boilers, of which the following is aspecification, reference being had to the accompanying drawings, and tothe letters of reference marked thereon.

My invention relates to steam-boilers; and its object is to provide forthe feeding, with feed-water freed from its incrustation, ofsteamboilers, such as Cornish or other cylindrical i5 boilers, circularboilers having boiler tubes, tubular boilers, or steam-boilers of' anyother suitable construction from a tubular or other equivalent boilerhaving a sufficiently higher pressure than that prevailing in the saidboiler or boilers to be fed with the said feed-water free ofincrustation, and also to provide means for effecting the said feed ofwater from the said boiler of higher pressure to the said boiler orboilers of lower pressure, so as to cause the feed to be eithercontinually or periodically,

and to allow of being readily regulated.

To enable others skilled in the art to better understand the nature ofmy invention, I will now proceed to describe the same, reference beinghad to the accompanying drawings, in

which- Figure 1 shows a tubular boiler provided with a device forfreeing feed-water from its incrustation, and combined with a number of3 5 Cornish or cylindrical boilers to be fed from the said tubularboiler with feed-water free of incrustation, while Fig. 2 shows theconnec tion of the cylindrical boilers with the connecting-pipe from thetubular boiler.

A is the tubular boiler.

B is the device or depositing-chamber employed for freeing feed-waterfrom its incrustation.

G O are the cylindrical or other boilers to a 5 be fed from the boiler Awith feed-water free of incrustation, and D is a pipe connecting, bymeans of the branches (1 d, the said boiler A with thesaid boiler orboilers (J. The branches d are provided with suitable cutoff valves, a,while the pipeD has the main cut-off valve to, The tubular boiler A issuitably connected locity through a number of suitable filtering platesor equivalent filtering media, h, of any convenient material, wherebythe incrustation contained in the said feed-water is separated from thelatter and retained by the said filtering media, while the purified feedwater, mixed with the said water of circulation, passes on and entersthe boiler A through the pipe 0. I wish to state here that I do notconfine my self to apply sievelike plates in the chamber B for thepurpose of filtering the feedwater and freeing the same from itsincrustation, as stated in my former patent hereinbefore referred to,and I propose to substitute for such perforated plates any equivalentfiltering material of suitable nature and construction-- such ashurdle-work of thorns, wire grate, coarse sack-cloth, basket-work, orany other equivalent material adapted to retain the said incrustation ofthe feed-water when the latter is met and carried along through the saidfiltering media by the circulating mixture of steam and hot waterejected from the boiler A. The latter, being thus continually fed withfeed-water practically free of incrustation, has a hi gher pressure thanthe'boiler or boilers O, which, as hereinbefore described, are connected9 with the said boiler A by means of the pipe *1), having the maincut-off valve (1 and the branches ([(l', provided with the cut-offvalves a a. Now, in order to effect the feeding of the said boilers 0having the lower pressure with purified feed-water from the boiler Ahaving the higher pressure, I proceed as follows that is to say, if, forinstance, the boiler 0 require feeding, I open the valve a in the mainand the valve a in the branch (1, so as to cause the required quantityof the purified water in the boiler A to be pressed over through. thepipes D and d into the boiler (1" by means of the higher pressureprevailing in the said boiler A as compared to that existing in theboiler O. .Afterthe feeding of the boiler O has been completed the saidvalves are shut again, and the same operation will take place withregard to boiler O by opening the valve a of the main and the valve a ofthe branch (1. Instead of such periodical feeding, it will be seen thatthe feeding may also takeplace continnallyif the said valves aand a aremade adjustable and provided with gradnations, so as to allow ofregulating the inflow of purified feed-water from the boiler A into theboiler or boilers O in proper proportion to the consumption of steam inthe said boiler or boilers (3. It will also be seen that this improvedmethod of feeding boilers with feed-water free of incrusta- 'tion allowsof readily combining with cylindrical or any other equivalent boilerssuch devices for freeing feed-water from its incrustation whoseappliance otherwise to the said boilers would have been impossible, ormost difficult, while by means of the adjustable connection described ofthe said boilers with the high'pressure tubular or other equivalentboiler a ready appliance of such purifying devices to boilers of anyconstruction is insured without there beingany changes required asconcerns the construction, foundation, or mode of working of suchboilers.

I wish it to be distinctly understood that I do not confine theapplication of myimproved method to boilers of any particularconstruction, nor to the manner in which the highpressure boiler isprovided with the feed-water free of incrnstation.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination, substantially as herein described, of the high-pressureboiler A, and the low-pressure boiler or boilers connected with thelower part of the former, with the filtering-chamber B, for receivingthe feed-water, a connection, 6, between one end of thefiltering-chamber and the lower part of the highpressure boiler, and aconnection, 1), between the upper part of the latterand other end of thefiltering-chamber, for the passage of steam and hot water into thefiltering-chamber to force the feed -water through the latter to thehigh-pressure boiler, the combination be ing to feed the low-pressureboiler or boilers from the high-pressure boiler with feed-water freefrom incrustation, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

I HEINRICH STOLL\VERCK.

\Vitnesses:

SAB'IUEL SPARKMAN, Tn. PEITMANN.

